Invention Grant
- Patent Title: Robust image feature based video stabilization and smoothing
- Patent Title (中): 强大的基于图像特征的视频稳定和平滑
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Application No.: US14049118Application Date: 2013-10-08
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Publication No.: US09277129B2Publication Date: 2016-03-01
- Inventor: Jason Klivington , Rudolph van der Merwe
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: Adeli LLP
- Main IPC: H04N5/232
- IPC: H04N5/232 ; G06T5/00 ; G06T5/50 ; G06T7/20

Abstract:
A method of removing unwanted camera motion from a video sequence is provided. The method matches a group of feature points between each pair of consecutive video frames in the video sequence. The method calculates the motion of each matched feature point between the corresponding pair of consecutive video frames. The method calculates a set of historical metrics for each feature point. The method, for each pair of consecutive video frames, identifies a homography that defines a dominant motion between the pair of consecutive frames. The homography is identified by performing a geometrically biased historically weighted RANSAC on the calculated motion of the feature points. The geometrically biased historically weighted RANSAC gives a weight to the calculated motion of each feature point based on the historical metrics calculated for the feature point. The method removes the unwanted camera motion from the video sequence using the identified homographies.
Public/Granted literature
- US20140362240A1 Robust Image Feature Based Video Stabilization and Smoothing Public/Granted day:2014-12-11
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